Any advice would help

I have been ttc for a long time now almost 3 yrs... i am finally going to doctors next week for a pelvic exam which im a little nervous about..

We have spoken before about running tests to find out why i cant get pregnant but it will cost 6000 for 3 tests, not knowing exactly what my insurance will pay.. i dont have that kind of money.. i have had 2 mc in 2015 so the 3 tests are

1. See if tubes are blocked

2. Check my uterus

3. Sperm count on hubby

Since i dont have that much cash i dont know if the uterus test will be enough to see whats wrong with me..

Please any advice or input much appreciated.. ONLY thing i have been taking is one a day women prenatals